21982572

素因数分解:

$2^2\times 3^2\times {\mathrm{23}}^1\times {\mathrm{139}}^1\times {\mathrm{191}}^1$

素因数の和:363

約数の個数: 72

約数和(自身を含む): 58705920

約数和(自身を除く): 36723348

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 23, 36, 46, 69, 92, 138, 139, 191, 207, 276, 278, 382, 414, 417, 556, 573, 764, 828, 834, 1146, 1251, 1668, 1719, 2292, 2502, 3197, 3438, 4393, 5004, 6394, 6876, 8786, 9591, 12788, 13179, 17572, 19182, 26358, 26549, 28773, 38364, 39537, 52716, 53098, 57546, 79074, 79647, 106196, 115092, 158148, 159294, 238941, 318588, 477882, 610627, 955764, 1221254, 1831881, 2442508, 3663762, 5495643, 7327524, 10991286, 21982572]

約数ペア:

[(1, 21982572), (2, 10991286), (3, 7327524), (4, 5495643), (6, 3663762), (9, 2442508), (12, 1831881), (18, 1221254), (23, 955764), (36, 610627), (46, 477882), (69, 318588), (92, 238941), (138, 159294), (139, 158148), (191, 115092), (207, 106196), (276, 79647), (278, 79074), (382, 57546), (414, 53098), (417, 52716), (556, 39537), (573, 38364), (764, 28773), (828, 26549), (834, 26358), (1146, 19182), (1251, 17572), (1668, 13179), (1719, 12788), (2292, 9591), (2502, 8786), (3197, 6876), (3438, 6394), (4393, 5004)]